Pneumatic tire



Aug H4, i923.

F. O. MUR@ PNEUMATIC TIRE Filed Jan. 13, 1925 @Hoz new Patented Ang. ld, i923.

htdttl FRANKLIN oRIvE MURO, on RUENo's nIREs, ARGENTINA.

i, i YPNE-ninna?Io TIRE.

Application filed January 131923. Serial No. Glflf).

To all whom it may concern:

Be it known that l, FRANKLIN @RIVE Mono sub'ect of the Kin@ o1p` S ain resid-V 7. J C p 7 ing at 764 Granaderos Street, Buenos Aires, `Argentina, have invented certain new and useiul improvements in Pneumatic Tires,of whiclrthe following is a speciication.

` My invention relates to an improved resilient tire for the wheels of motorcars, mo` tor-cycles, cycles and the like, its object being' to providean improved tire which is perfectly puncture-prooi and invulnerable to the usual accidents which are liable to injurethe resilient bandages.

The invention consists essentially in constructing` an armoured tire, said tire being constituted of a metallic armour placed in two series of armoured strips each series being separated from the other .by a layer of gummed canvas and the strip of the outer series corresponding to the tree spaces between the strips of the inner series. A tire constructed as above has the same elasticity and resiliency as the usual tires and has turther a much longer life.

In order that my invention may be clearly understood and easily carried into practice a preferred embodiment of the same has been illustrated in the appended drawings7 wherein A Figure l is a plan view of an armoured strip with the armour plates `lined thereon.

Figure 2 is'a transverse section of a central armour plate.

VFigure 3 is a transverse section of one ot the lateral armour plates. Y

Figure i is a transverse diagrammatical section of the tire.

Figure 5 is a perspective view showing the general disposition of the inner layerof the armour.

1 more gummed canvas layersV Ak on which to cover both sides of the tire. The armoured strips are placed so as to leave between them a space substantially equal or less to the width oi" each et them, said space being covered with an india-rubber strip, which on being vulcanized, perfectly connects all the armoured strips. Said series of armoured and india-rubber strips 'form a layer as shown in D. Said layer is covered by an india rubber' layer E which embraces all the tire up to the heels. After this layer a second series oi' armoured strips is laid on, the armoured strips being so placed as to cover the free spaces between the armoured strips or the lirst layer. in the spaces be* tween the said armoured strips, new strips ci india rubber or duly placed, which on being vulcanized form together-with the armoured strips of the second series a new layer as shown in F.

The free ends of the canvas of the layer lF enter the free spaces between the ends of the layers in D, a continuous succession ot layers being formed thereby. Said ends surround the heel ci' the tire and terminate Yat the inner side of the cover.

A new layer of india rubber is placed on this second layer ofY armoured plates as shown in G and on this layer a new layer oli gumined canvas His fixed, said layer covering the whole surface of the tire and terminating within the same.

Finally, a thick layer of india rubber if placed on the tire,- said layer forming the outer surface or thread l. The whole is submitted to vulcanization bythe ordinary processes.

A tire constructed according` to my present invention is perfectly puncture-proof, as any nail or like cutting or puncturinfigmeans must necessarily strike against the armour' plates C or C oi one of the layers and is thereby held. The resiliency of the tire is unimpaired as the armour plates C and C which are overlapping each other, are capable ot a sulhcient movement to allow jot this resiliency. The armour plates are fixed to the'respective strips of canvas by means of gripping devices.

Itis obvious that many constructional and other changes may be introduced without departing from the scope et my present invention which has been clearly set forth in the appended claim.

llfavingV now fully described and ascertained Jthe nature of my present invention and in what manner the Seme is to be czll'red into pmctcc5 l declare that what claim and desire to potect by Letters Patent is:

EL pneumatic tire comprising a fabric layer; e series of mmoured strips extending trams- Vel'sely across said layer in spaced7 pufalel relation; a layer of rubber ou said armoured stripe; a second serios of spaced zimouled" eti'ps arranged tlansvel'sely across the layer' ol rubber and overlapping the stpS of the 10 first layer, said strips each Comprising a backing; strip bevi-ng metal plates seemed thereto; and a' tread for said tire.

In' testimony whereof I afix my signature.

FRALNKLQN @RIVE MURO. Y 

